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/**
*    Copyright (C) 2014 10gen Inc.
*
*    This program is free software: you can redistribute it and/or  modify
*    it under the terms of the GNU Affero General Public License, version 3,
*    as published by the Free Software Foundation.
*
*    This program is distributed in the hope that it will be useful,
*    but WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*    GNU Affero General Public License for more details.
*
*    You should have received a copy of the GNU Affero General Public License
*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
*    As a special exception, the copyright holders give permission to link the
*    code of portions of this program with the OpenSSL library under certain
*    conditions as described in each individual source file and distribute
*    linked combinations including the program with the OpenSSL library. You
*    must comply with the GNU Affero General Public License in all respects for
*    all of the code used other than as permitted herein. If you modify file(s)
*    with this exception, you may extend this exception to your version of the
*    file(s), but you are not obligated to do so. If you do not wish to do so,
*    delete this exception statement from your version. If you delete this
*    exception statement from all source files in the program, then also delete
*    it in the license file.
*/

#pragma once

#include <cstddef>

namespace mongo {
namespace crypto {
/*
 * Computes a SHA-1 hash of 'input'.
 */
bool sha1(const unsigned char* input, const size_t inputLen, unsigned char* output);

/*
 * Computes a HMAC SHA-1 keyed hash of 'input' using the key 'key'
 */
bool hmacSha1(const unsigned char* key,
              const size_t keyLen,
              const unsigned char* input,
              const size_t inputLen,
              unsigned char* output,
              unsigned int* outputLen);

}  // namespace crypto
}  // namespace mongo